L9680 datasheet(248/277 Pages) STMICROELECTRONICS

248 / 277 page

Electrical characteristics

L9680

248/277

DocID029257 Rev 1

16.16

Deployment drivers

All electrical characteristics are valid for the following conditions unless otherwise noted:

-40 °C

 Ta  +95 °C, VINGOOD0  VIN  35V, 6V  SSxy  35V, SSxy - SFx  25V.

ILKG_VSF_OFF VSF input leakage

Device OFF

-5

μA

7RPD_VSF

VSF pull-down resistance

Device ON

VSF regulator OFF; VSF = 25V

125

220

kΩ

8IPD_VSF

VSF pull-down current

Device ON

VSF regulator ON; Design Info

μA

9IPD_VSF_TOT VSF total pull-down current

Device ON

VSF regulator ON

VSF = 25V

SYS_CGF(VSF_V)= 1

147

230

462

μA

Table 53. VSF regulator DC specifications (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Table 54. VSF regulator AC specifications

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

1TON_VSF

VSF turn on time

CVSF = 14 nF

Measured from VSF_EN=1 to

VSF inside regulation limits

100

μs

Table 55. Deployment drivers – DC specifications

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

1IDEPL_LO

Deployment Current

R = 2 ohms

Considering 9mA as not detected

leakage with a 1kOhm equivalent

resistance from SFx to GND

1.33

1.4

1.6

2IDEPL_HI

R = 2 ohms, 9V ≤ SSxy

Considering 13.5mA as not

detected leakage with a 1kOhm

equivalent resistance from SFx to

GND,

1.94

1.99

2.3

3ITH_DEPL

Deployment Current Counter

Threshold

IDEPL

x *

90%

4IOC_SR

Low side Over Current

Detection

2.2

3.1

4.0

5ILIM_SR

Low side

Current Limitation

2.2

3.1

4.0

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